KR100730821B1 - Apparatus and method for playing music in a mobile communication terminal - Google Patents

Abstract

A mobile communication terminal having a sound source reproducing function according to the present invention controls a connection of a wireless network, accesses a music server via a wireless network, downloads a playlist composed of sound source IDs, or obtains a sound source corresponding to an arbitrary sound source ID. It provides the user with the downloaded modem processor, the memory in which the playlist and sound source downloaded through the modem processor, and the playlist stored in the memory according to the sound source playback request, and by selecting one sound source ID from the playlist, the modem processor A list processing unit which receives and provides a sound source corresponding to the selected sound source ID from the music server or draws a sound source corresponding to the selected sound source ID from the memory, and a media player which receives the sound source from the list processing unit and processes the signal and outputs the sound source. do.

As described above, the present invention is to determine the location of the sound source by the sound source ID to play the sound source from the server or to receive and play the sound source stored in the terminal, so that the sound source can be reproduced only by the sound source ID without storing the sound source in the terminal to the memory in the mobile communication terminal Not only can it be efficiently managed, but it can also be user-friendly.

Mobile terminal, MP3, sound source

Description

Apparatus and method for reproducing a sound source of a mobile terminal {APPARATUS AND METHOD FOR PLAYING MUSIC IN A MOBILE COMMUNICATION TERMINAL}

1 is an internal block diagram of a mobile communication terminal having a multimedia playback function according to the prior art;

2 is a block diagram illustrating a mobile communication system for reproducing a sound source of a mobile communication terminal according to the present invention;

3 is a block diagram showing the internal structure of a mobile communication terminal having a sound source reproduction function according to the present invention,

4 is a flowchart illustrating a process of reproducing a sound source by a mobile communication terminal according to the present invention.

<Description of the code | symbol about the principal part of drawing>

200: sound source DB 210: music server

220, 250: mobile communication terminal 230: mobile communication network

240: IP network 300: modem processor

302: memory 304: list processing unit

306: media playback unit 308: control unit

310: key input unit

The present invention relates to a mobile communication terminal having a sound source reproducing function, and more particularly, to a sound source reproducing apparatus and method of a mobile communication terminal capable of identifying and reproducing a location of a sound source using a sound source ID.

In general, personal communication service is an inexpensive and universal mobile service that allows an individual to perform voice and low speed data communication regardless of place and time using a mobile communication terminal. Currently, wired / wireless communication networks are mainly used for voice communication. However, in recent years, due to the steady increase in the number of data service subscribers, its use is expanding to non-voice services such as data services.

Recently, terminals for enabling video calls as well as voice calls have been developed. In particular, terminals having a modem processor for communicating with a base station and a multiprocessor for processing multimedia have been developed and used.

1 is a schematic diagram showing a configuration of a mobile communication terminal having a general multimedia playback function. An RF 10 and a modem processor (RF) for receiving a signal for communication with a base station and processing the RF signal and outputting the signal after RF processing is performed. 20) and a multimedia processor for processing a predetermined signal to display a predetermined signal on the LCD 50 or processing the data captured by the camera 50 to a predetermined signal and then applying the signal to the modem processor 20 through an interface. 30).

The interface between the modem processor 20 and the multimedia processor 30 is implemented in various ways. For example, various interface devices such as DPRAM, UAT, and USB may be used.

In other words, the modem processor 20 processes a user voice signal input through a microphone and transmits a predetermined signal to the base station through the RF 10 or a voice signal received from the base station in the case of a voice call. Output through

The multimedia processor 30 is for processing multimedia data, such as MP3 data or MPEG data. The multimedia processor 30 processes and compresses a video signal captured by the camera 50 by predetermined signal processing and then compresses the compressed video signal into an interface. The communication is applied to the modem processor 20 to perform communication, or the MP3 data received through the modem processor 20 is processed through a predetermined signal and output through a speaker.

In order to play the MP3 file, the mobile communication terminal equipped with the multimedia processor 30 first connects to the wireless portal site, and then browses the wireless portal site for the MP3 file that the user wants to listen to, and retrieves the retrieved MP3 file. Download and play over wireless.

In order to play the downloaded MP3 file through this process, open the MP3 file list stored in the mobile communication terminal and select the desired file to play. At this time, the downloaded file (song stored in the wireless portal site) cannot be played. Access the wireless portal site through the wireless network, search for the file you want to listen to, and play it after streaming or download.

However, in general, since the storage capacity of the mobile communication terminal having the MP3 function is small, there is a need to delete the downloaded MP3 file in order to download and enjoy a new file.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art, and by recognizing and reproducing the location of a sound source by sound source ID, a sound source reproducing apparatus and method of a mobile communication terminal that can be reproduced even if the sound source is not stored in the mobile communication terminal. To provide.

In order to achieve the above object, the present invention provides a mobile communication terminal capable of accessing a music server through a wireless network, and having a sound source reproducing function, controlling access of the wireless network, and accessing the music server through the wireless network. A modem processor for accessing and downloading a playlist consisting of sound source IDs or a sound source corresponding to an arbitrary sound source ID, a memory in which the play list and the sound source downloaded through the modem processor are stored, and the sound source playing request. Providing a playlist stored in the memory to the user, and controlling the modem processor according to the selection of one sound source ID from the play list to download a sound source corresponding to the selected sound source ID from the music server or the selected sound source in the memory. Corresponding to ID And list processing section for extracting the sound source receives the sound source provided from the list processor includes a media playback unit and outputting the processed signal.

In addition, the present invention is connected to a music server storing a sound source having a respective sound source ID via a wireless network, the mobile communication terminal is a method for reproducing the sound source memory stored in the sound source having a sound source ID, a plurality of from the music server Determining whether a sound source corresponding to the selected sound source ID exists in the memory according to selection of one sound source ID in the play list, and as a result of the determination, the selected sound source If the sound source corresponding to the ID does not exist, accessing the music server through the wireless network and receiving and playing the sound source corresponding to the selected sound source ID in a streaming manner; and as a result of the determination, the sound source ID corresponds to the selected sound source ID. If there is a sound source to be stored in the memory source corresponding to the selected sound source ID Retrieving and playing in the step.

There may be a plurality of embodiments of the present invention, and a preferred embodiment will be described in detail below with reference to the accompanying drawings. Those skilled in the art will be able to better understand the objects, features and advantages of the present invention through this embodiment.

2 is a block diagram illustrating a mobile communication system for reproducing a sound source of a mobile communication terminal according to the present invention.

Referring to FIG. 2, the mobile communication system according to the present invention searches for a sound source DB 200 in which a sound source designated with a sound source ID is stored, and a sound source DB 200 in response to a request of a sound source having an arbitrary sound source ID. The music server 210 extracts the sound source corresponding to the sound source ID of the music server 210, and is connected to the music server 210 through the mobile communication network 230 and the IP network 240 to download a playlist including a plurality of sound source IDs. It is composed of mobile communication terminals 220 and 250 for downloading and storing a sound source having a sound source ID and reproducing a sound source based on the sound source ID.

The mobile communication terminals 220 and 250 may be connected to the music server 210 through a wireless TCP / IP network.

Although not shown, the mobile communication network 230 is a vertical SMS server (VMSS), a SMS center, a mobile switching center (MSC), a base station controller (BSC), a base station transceiver system (BTS). ) And Packet Data Service Node (PDSN). In the present invention, the mobile communication network 230 and the IP network 240 are collectively defined as a wireless network.

The playlist provided by the mobile communication terminal 220 is composed of a sound source ID, and is provided from the music server 210 or is connected to another mobile communication terminal 250 with a peer-to-peer (P2P) to the other mobile communication terminal 250. It can be provided from.

When the user selects one of the sound source IDs included in the playlist, the mobile communication terminals 220 and 250 play the pre-stored sound source as "DS (Downloaded Source") when the sound source corresponding to the selected sound source ID is stored. Otherwise, the music server 210 is connected to the music server 210 via a wireless network as an "SS (Streaming Source)" to request a sound source corresponding to the selected sound source ID, and then the sound source is provided in a streaming manner from the music server 210. The sound source received through the above process is reproduced by the mobile communication terminal (220, 250).

The receiving mobile communication terminal 220 downloads a playlist from the transmitting mobile communication terminal 250 which is another mobile communication terminal in a P2P manner as follows.

First, a user of another mobile communication terminal 250 generates a music message by generating a music message by creating a list of sound source IDs to be transmitted, that is, a play list, a mobile communication terminal number (MIN) of a user to receive the play list, and a predetermined message, and then generating the music message. / IP network, i.e., to the music server 210 via the BTS, BSC and PDSN.

As the playlist is received from the transmitting mobile terminal 250, the music server 210 transmits a wake up SMS message to the receiving mobile terminal 220 corresponding to the MIN included in the message. At this time, the wake-up SMS message informs that the music arrival message arrives at the receiving mobile communication terminal 220 because the terminal application ID is different from the general SMS message. Here, the wake-up SMS message is transmitted to the receiving mobile communication terminal 220 through the VSMSS, SMS, mobile switching center, base station controller, and BTS of the mobile communication network 230.

The receiving mobile communication terminal 220 analyzes the terminal application ID to determine the arrival of the music message, and when the user requests the download of the music message, requests the music message to the music server 210 via the wireless TCP / IP network.

Accordingly, when the music server 210 transmits a play list, which is a list of sound source IDs, which are data to be transmitted, and a predetermined message to the receiving mobile communication terminal 220 through a wireless TCP / IP network, the receiving mobile communication terminal 220 In addition to storing a playlist, which is a list of received sound source IDs, a predetermined message is displayed on a display device such as an LCD.

Here, the structure of a mobile communication terminal having a sound source reproducing function will be described with reference to FIG. 3. 3 is a block diagram showing an internal structure of a mobile communication terminal having a sound source reproducing function according to the present invention.

As shown in FIG. 3, the mobile communication terminal according to the present invention controls a connection of a wireless network, accesses the music server 210 via a wireless network, downloads a playlist composed of sound source IDs, or any sound source ID. Modem processor 300 for downloading a sound source corresponding to the memory, Play list and sound source downloaded through the modem processor 300, the memory 302 is stored, and the playlist stored in the memory 302 in accordance with the media file playback request It provides to the user and controls the modem processor 300 according to the selection of one sound source ID in the play list to download and provide a sound source corresponding to the sound source ID selected from the music server 210 or the sound source ID selected in the memory 302. The list processing unit 304 and the list processing unit 304 for extracting a sound source corresponding to the A media playback unit 306 for outputting to a speaker, a controller 308 for controlling the overall function of the mobile communication terminal, and a key for controlling the overall function of the mobile communication terminal to control the control signal according to a user's key operation. And a key input unit 310 provided to 308.

At this time, the media player 306 converts the bit stream of the block unit output from the player 306a into a PCM and a player 306a for receiving and outputting the bit stream of the sound source received from the list processing unit 304 in units of blocks. A codec 306b and a sound processing module 306c which demodulates the PCM signal output from the codec 306b, converts the PCM signal into an analog signal, and outputs it to a speaker.

For example, a flash memory may be used as a memory 302 in which a play list and a sound source are stored in a mobile communication terminal having a media file playing function as described above.

The process of reproducing the sound source by the mobile communication terminal illustrated in FIG. 3 will be described with reference to FIG. 4. 4 is a flowchart illustrating a process of playing a media file by a mobile communication terminal according to the present invention.

2 to 4, first, the receiving side mobile communication terminal 220 accesses the music server 210 through the mobile communication network 230 and the IP network 240 (S400), and then the music server 210. In operation S402, a play list including at least one sound source ID provided from or provided by the transmitting-side mobile communication terminal 250 is provided.

Here, the playlist provided by the transmitting mobile terminal 250 is provided to the receiving mobile communication terminal 220 through the wireless TCP / IP network, before receiving the playlist, the receiving mobile communication terminal 220 is provided. The music server 210 receives an SMS message which is a music message arrival notification message.

In addition, the playlist provided from the music server 210 may be created by combining the sound source IDs provided by the music server 210 by the user of the receiving mobile communication terminal 220.

As such, when the user of the receiving-side mobile communication terminal 220 provided with the play list selects any one of sound source IDs included in the play list to reproduce the sound source (S404), the receiving-side mobile communication terminal 220 The control unit 308 determines whether a sound source corresponding to the sound source ID selected by the user exists in the memory 302 (S406).

If the sound source is not present in the memory 302 as a result of the determination in step S406, the controller 308 determines that the sound source is "SS" and corresponds to the sound source ID selected by the user to the music server 210 through the control of the modem processor 300. The streaming request is made to the sound source (S408). Accordingly, the music server 210 searches for a sound source corresponding to the sound source ID received from the receiving mobile terminal 220 in the sound source DB 200 and provides the same to the receiving mobile terminal 220 in a streaming manner. In operation S410, the modem processor 300 of the receiving-side mobile communication terminal 220 provides the media player 306 with the media player 306.

As a result of the determination in step S406, when the sound source exists in the memory 302, the control unit 308 determines that it is "DS", and extracts the sound source from the memory 302 and provides it to the media playback unit 306, thereby reproducing the media. The unit 306 processes the sound source and outputs the signal to the speaker (S412).

As mentioned above, although this invention was demonstrated concretely based on the Example, this invention is not limited to this Example, Of course, various changes are possible within the range which does not deviate from the summary of the claim described below. .

As described above, the present invention is to determine the location of the sound source with the sound source ID to play the sound source from the server or to receive and play the sound source stored in the terminal, it is possible to play the sound source only with the sound source ID without storing the sound source in the terminal in the mobile communication terminal Not only can the memory be managed efficiently, but the user's convenience can be achieved.

Claims (7)

A mobile communication terminal capable of accessing a music server through a wireless network and having a sound source playback function, A modem processor which controls access of the wireless network, accesses a music server through the wireless network, downloads a playlist composed of sound source IDs, or downloads a sound source corresponding to an arbitrary sound source ID; A memory storing a playlist and a sound source downloaded through the modem processor; Providing a playlist stored in the memory to the user according to the sound source reproduction request, and controlling the modem processor to download a sound source corresponding to the selected sound source ID from the music server by selecting one sound source ID from the play list. A list processing unit for receiving or withdrawing a sound source corresponding to the selected sound source ID from the memory; Media playback unit for receiving a sound source from the list processing unit for signal processing and output Sound source playback apparatus of a mobile communication terminal comprising a. The method of claim 1, The media playback unit, A player for receiving and outputting the bit stream of the sound source received from the list processor in units of blocks; A codec for converting a bit stream in units of blocks output from the player into a PCM; And a sound processing module for demodulating the PCM signal output from the codec, converting the signal into an analog signal, and outputting the analog signal to a speaker. The method of claim 1, And the memory is a flash memory. The method of claim 1, The mobile communication terminal communicates with any other mobile communication terminal through the music server, and receives the play list from the other mobile communication terminal or provides the other mobile communication terminal to reproduce the sound source. Device. The method of claim 4, wherein And the mobile communication terminal receives an SMS message from the music server informing the reception of the play list before receiving the play list from the other mobile communication terminal. As a method of reproducing a sound source by a mobile communication terminal connected to a music server storing a sound source having a respective sound source ID and a wireless network, and having a memory in which a sound source having a sound source ID is stored, Receiving a playlist having a plurality of sound source IDs from the music server; Determining whether a sound source corresponding to the selected sound source ID exists in the memory according to one sound source ID selection in the play list; If the sound source corresponding to the selected sound source ID does not exist, accessing the music server through the wireless network and receiving and playing a sound source corresponding to the selected sound source ID in a streaming manner; If there is a sound source corresponding to the selected sound source ID as a result of the determination, retrieving a sound source corresponding to the selected sound source ID from the memory and playing the sound source; Sound source reproduction method of a mobile communication terminal comprising a. The method of claim 6, The step of receiving the play list, A method of reproducing a sound source of a mobile communication terminal, characterized in that it is provided through a P2P connection with any other mobile communication terminal.

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